So here's the thing: I'm looking for a sub to finish off my new HT system. This project started off simple enough, I was pretty set on the "Parts Express" 10" Titanic kit for $350 but I just can't get excited about a 10" sub. I thought about a JBL PB12 but a couple posts have mentioned amp problems and that it's a little boomy. I've done lots of searches and keep coming back to "Acoustic Visions". SVS is pretty much out due to it's size and look. The sub will be used 75% movies, 25% music. The room is 18' by 12' and has vaulted ceilings joining it to a room about the same size. I don't get to crank it up as often as I like but I want good tight looowwww bass. Speaker are JBL NSP1s. My speakers and reciever should arrive Monday so WTF (Wife Tolerance Factor) not to mention funding is pretty low, I'd like to stay under $400 but I'd rather pay more now than have to upgrade later. One good thing is I was looking at different box sizes and set-ups and I noticed that Acoustic Visions is pretty close to me, like I could be there in about 25 minutes if I left now... ...that could save shipping costs anyway. So my questions, which I'm slowly getting to, are these: JBL PB12 vs Dayton Titanic 10" kit vs Acoustic Visions kit? Taking into account the price difference. If Acoustic Visions then: what size box? ported or sealed? Will the "Parts Express" 250 watt amp work well? Does anyone else have an Acoustic Visions sub? How do you like it? Thanks for the help guys! I haven't posted much because I've been able to find answers to my questions through searches but this site has been great for helping be put my system together.